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Electric vehicle driving range calculation method and system, storage medium and electric vehicle

A technology for driving range and electric vehicles, which is applied in the direction of electric vehicles, vehicle energy storage, vehicle components, etc., can solve the problems of continuous driving range jumps, achieve accurate display, avoid large jumps, and improve the convenience of use

Pending Publication Date: 2022-07-12
JIANGLING MOTORS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Based on this, the object of the present invention is to provide a method, system, storage medium and electric vehicle for calculating the mileage of an electric vehicle, so as to fundamentally solve the problem that the mileage of an existing vehicle jumps drastically when the battery heating function is turned on.

Method used

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  • Electric vehicle driving range calculation method and system, storage medium and electric vehicle
  • Electric vehicle driving range calculation method and system, storage medium and electric vehicle
  • Electric vehicle driving range calculation method and system, storage medium and electric vehicle

Examples

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Embodiment 1

[0064] see figure 1 , which shows a method for calculating the driving range of an electric vehicle in the first embodiment of the present invention, and the method specifically includes steps S01 to S09.

[0065] Step S01, collecting the current ambient temperature and the temperature of the battery pack.

[0066] Among them, in an embodiment of the present invention, a variety of sensors are arranged on the electric vehicle to collect and detect the state information and external environment information of the vehicle. Specifically, for example, multiple sets of ambient temperature sensors are arranged on the vehicle to collect and detect the vehicle The current external ambient temperature T1; the battery pack in the vehicle is arranged with multiple sets of cell temperature sensors to collect the battery pack temperature T2; the BMS battery management system set in the battery pack is used to collect and calculate the current SOC; BMS discharge current and voltage sensors...

Embodiment 2

[0135] Another aspect of the present invention also provides an electric vehicle driving range calculation system, please refer to figure 2 , shown is the electric vehicle driving range calculation system in the second embodiment of the present invention, wherein the electric vehicle driving range calculation system includes:

[0136] The information collection module 11 is used to collect the current ambient temperature and the temperature of the battery pack;

[0137] The function judgment module 12 is used for judging whether the electric core heating function is turned on in the vehicle;

[0138] The first available power calculation module 13 is used to calculate the first available power when the battery pack reaches the heating cut-off temperature in the current state when the function judgment module 12 determines that the vehicle has the cell heating function turned on;

[0139] The first average power consumption calculation module 14 is configured to calculate the...

Embodiment 3

[0173] Another aspect of the present invention also provides an electric vehicle, please refer to image 3 , shows an electric vehicle in a third embodiment of the present invention, including a memory 20, a processor 10, and a computer program 30 stored on the memory 20 and executable on the processor 10, the processor 10 executing the computer The program 30 implements the above-mentioned method for calculating the cruising range of the electric vehicle.

[0174] Wherein, the electric vehicle may specifically be a pure electric vehicle carrying a ternary lithium battery or a lithium iron phosphate battery, and the processor 10 may be a central processing unit (Central Processing Unit, CPU), a controller, a microcontroller in some embodiments A processor, a microprocessor or other data processing chips are used to run the program codes or process data stored in the memory 20, such as executing access restriction programs and the like.

[0175] The memory 20 includes at least...

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Abstract

The invention provides an electric vehicle driving range calculation method and system, a storage medium and an electric vehicle. The method comprises the steps that the current environment temperature and the battery pack temperature are collected; judging whether the vehicle starts a battery cell heating function or not; if yes, calculating the first available electricity quantity of the battery pack at the heating cut-off temperature; calculating the first average power consumption of the vehicle within the specified mileage before the current moment; calculating predicted power consumption required by heating according to the current environment temperature, the battery pack temperature and the heating cut-off temperature; calculating the driving range at the current moment according to the first available power consumption, the predicted power consumption and the first average power consumption; if not, calculating a second available electricity quantity of the battery pack at the battery pack temperature; calculating a second average power consumption of the vehicle within a specified mileage before the current moment; and calculating the driving range at the current moment according to the second available power consumption and the second average power consumption. The problem that the driving range of an existing vehicle drastically jumps when the battery cell heating function is started is solved.

Description

technical field [0001] The invention relates to the technical field of electric vehicle control, in particular to a method, a system, a storage medium and an electric vehicle for calculating the driving range of an electric vehicle. Background technique [0002] In order to facilitate the driver to predict the remaining driving range and plan the trip in advance, almost all pure electric vehicles are currently equipped with a driving range display function. The current driving range calculation method commonly used for pure electric vehicles is as follows: first, calculate the remaining available power of the current battery pack according to the current ambient temperature, and then calculate the average power consumption of a certain distance before the current moment or a certain period of time. The former is divided by the latter to get Remaining driving range. [0003] However, in order to obtain higher energy density in current electric vehicles, ternary lithium batte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/12
CPCB60L3/12Y02T10/70
Inventor 王功博魏广杰游道亮韩雪雯吴浩杨乐
Owner JIANGLING MOTORS
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